l ( How many carbon atoms are there in 1.0 mole of sucrose? (Avogadro's number 6.022 x 1023) (c) (i) Define "lattice energy" ofreaction? (ii) Draw the Bond-Haber cycle for NaCl and use the data below to calculáte its lattice energy. AH (KJ) Reaction 109 + Na(g) + 2CI (g) Na (s)- 243 Cl2 (g) Na (g) 496 Na* (g) + e -349 CI (g) + e - CI (g) -411 Na(s) + 1/2C12 (g)

Q: Calculate the enthalpy of reaction for H2(g) + C2H4(g) → C2H6(8). [AH F(C2H4(E)) = 52.3 kj/mol; AH…

A:

Q: 3. For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: Enthalpy of formation is defined as the heat change during the formation of 1 mole of a substance…

Q: What is the enthalpy change for the following process? N₂(g) + 2H₂(g) → N₂H₂(1) AH = ??? kJ/mol…

A: Here we are required to find the Enthalpy change for the following reaction

Q: The equation for the reaction of nitrogen and hydrogen to form ammonia is shown below. N,(g) + 3H,…

A: Given N2 +3H2 →2NH3 △H = - 97 KJ/mole The enthalpy of H-H and N≡N are 436 and 941

Q: The equation for the reaction of nitrogen and hydrogen to form ammonia is shown below. N,(g) +…

A: Reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g)   ∆H° = (sum of bond enthalpies of reactants - sum of bond…

Q: KCl has a lattice energy of −701 kJ/mol. Consider a generic salt, AB, where A2+ has the same radius…

A: The Lattice energy of KCl is given as −701 kJ/mol. It is composed of  K +  and Cl- ions. The given…

Q: The methane molecule, CH4, has the geometry shown inFigure 2.17. Imagine a hypothetical process in…

A: The given reaction is CH4 (g) → C (g) + 4H (g) Step 2: (a)  In the reverse reaction The H2 molecules…

Q: 8. Determine the enthalpy for the following reaction, given AH (NH3(g)) =-46.1 kJ/mol, AH, (NO(g)) =…

A:

Q: Determine the enthalpy change for the reaction 2

A:

Q: (b) Construct a Born Haber cycle diagram for the formation of magnesium chloride and find the…

A: Answer is explained below.  The given information are as follows:

Q: Using the following bond energies (in kJ/mol):             BE(NºN) = 946;           BE(Cl─Cl) = 243;…

A:

Q: Using standard enthalpy of formation table in your book calculate the AH° for the reaction: 2…

A: Hess's law  states that the amount of heat evolved or absorbed in a process is independent of the…

Q: Sodium chloride is added in cooking to enhance the flavor of food. When 10.00 g of NaCl are…

A: Given: mass of NaCl = 10.00 g volume of water = 200.0 mL initial temperature of water = 25.0°C…

Q: The standard molar enthalpy of formation of NH3(g) is –45.9 kJ/mol. What is the enthalpy change if…

A: Given, The standard molar enthalpy of the formation of NH3(g) is given by= -45.9 kJ/mol The mass of…

Q: For the reaction below, 5.95 kJ of heat must be supplied to convert 13.43 g lead(II) oxide into pure…

A:

Q: The standard molar enthalpy of formation of NH3(g) is −45 kJ/mol. What is the enthalpy change if…

A: Standard molar enthalpy of formation of NH3(g) = -45 kj/mol Moles of N2 gas = Given MassMolar…

Q: 2C6H6() + 15 O2(g) – 12 CO2(g) + 6 H20(/) AH = -5.884 x 103 kJ - An unknown amount of C6H6(/) was…

A: Given 2C6H6(l) +15O2 (g) -> 12CO2 (g) + 6 H2O (l) Delta H = -5.884 × 103 KJ  For unknown amount…

Q: (a) Consider the hypothetical element X. XO reacts with hydrogen gas to form XH;OH. Calculate the…

A: Here we have to find out the enthalpy of the reaction of XO with the hydrogen gas to form XH3OH.  XO…

Q: 12. Consider the following process. + 2H,O(e) AH = -802 kJ %3D CH4 (8) + 202 (8) 2 CO2 (8) A) Is the…

A: We have to predict the change in enthalpy and it's nature.

Q: What is the enthalpy change for the following chemical reaction in kJ/mol: ½ O2(g) + H2(g) → H2O(g)?

A:

Q: Consider the following reaction: 2 H2(g) + O2(g)  2 H2O(l) Answer the following questions: (a) How…

A:

Q: When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass =…

A: Iron reacts with chlorine to form iron(II) chloride. When 3.22 g of  is formed, 6.8 kJ of heat is…

Q: Ozone, O31g2, is a form of elemental oxygen that plays an importantrole in the absorption of…

A: The quantity of heat liberated or absorbed in a chemical reaction is expressed in terms of the…

Q: Consider the following reaction:   2 CH3OH(g) → 2 CH4(g) + O2(g)                    DH = 252.8 kJ…

A: NOTE : Since you've posted multiple sub-parts,we'll solve first three sub-parts for you. If you want…

Q: The enthalpy of formation AH; is associated with which of the reactions below? Select one: O Li(g)…

A:

Q: 1. What is the enthalpy change when 12.8 g Hz (g) reacts with excess (lig) to form HCl (g) H₂ (g) +…

A:

Q: For the chemical reaction Ca (s) + 02 (g)→CAO (s) AH° = -635 kJ/mol. What is the enthalpy for the…

A: Given reaction,      Ca(s) + 1/2 O2(g) → CaO(s)       ∆H0 = - 635 kJ/mol

Q: Consider the following equation:        2C2H2(g) + 5O2(g) ->4CO2(g) + 2H2O(g) + energy        (a)…

A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…

Q: rather than oxygen is the combustion agent. The enthalpy of formation of CF4(g) is kJ/mol. The…

A: Exothermic reactions  are reactions or processes that  releases energy in the form of heat or light

Q: The lattice energy is defined as the energy required to break one mole of an ionic solid into its…

A:

Q: NH3(g) +O2lg) -> + (3)ON H2O(g) Based on the enthalpies of formation, how much energy, in kJ, will…

A:

Q: Determine the enthalpy for the following reaction, given A (NH3(g)) = -46.1 kJ/mol, AH (NO(g = +90.3…

A:

Q: CSCI has a lattice energy of -657 kJ/mol. Consider a generic salt, AB, where A²+ has the same radius…

A: Lattice energy is the energy required to dissociate the salt of type AB into the ions of A+ and B-.…

Q: The enthalpy of formation of H2O(l) is -285.8 kJ/mol. What is the enthalpy change if 1.62 g H2(g)…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.